英文關鍵字
birds
brush
chat
chirp
cleaning
cloud
collection
day
ecology
environment
feathers
flight
flock
nature
rest
sit
sky
swallows
the
ummer
wings
wire
wires
英文關鍵字
birds
brush
chat
chirp
cleaning
cloud
collection
day
ecology
environment
feathers
flight
flock
nature
rest
sit
sky
swallows
the
ummer
wings
wire
wires